Hippocampus Text Adventure — written as an exercise in learning Python, you explore the hippocampus. It’s simple, but I like the idea of educational text adventures. (Well, educational in that you learn about more than the axe-throwing behaviour of the cave-dwelling dwarf)
Pandas — BSD-licensed Python data analysis library.
Building Lanyrd — Simon Willison’s talk (with slides) about the technology under Lanyrd and the challenges in building with and deploying it.
Electronic Skin Monitors Heart, Brain, and Muscles (Discover Magazine blogs) — this is freaking awesome proof-of-concept. Interview with the creator of a skin-mounted sensor, attached like a sticker, is flexible, inductively powered, and much more. This represents a major step forward in possibilities for personal data-gathering. (via Courtney Johnston)